Cutter and cutter-guard for harvesters and mowers



(N0 Model.)

I R. BROWN. CUTTER AND CUTTER GUARD FOR HARVESTERS AND MOWERS. -No. 314,103. Patented Mar. 17,, 1885.

of the plate.

UNITED STATES ATENT OFFICE.

ROBERT BROWN, OF SPRINGFIELD, OHIO.

CUTTER AND CUTTER-GUARD FOR HARVESTERS AND MOWERS.

SPECIFICATION forming part of Letters Patent No. 31%,103, dated March 17, 1885.

Application filed December 7, 1883. (No model.) i

To all whom it may concern:

Be it known that I, ROBERT BROWN, a citizen of the United States, and a resident of Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Gutters and Cutter-Guards for Harvesters and Mowers, of which the following is a specification. I

The object of my invention is, first, to provide a readily-detachable guard-finger, and, second, to provide a readily-detachable ledgerplate, secured and held firmly in position by the attachment of the guard-finger to the cutter-bar, so that the finger or guard can be readily detached for renewal and the shear or cutter plate readily removed for being ground or replaced with new cutters. In guard-fingers hitherto constructed there has been a difficult-y in the removal or renewal of the same, and the cutters or shear-blades are usually secured by screws countersunk in the face These become worn and rusted and the screw slots or headsbroken, rendering their removal diflicult as well as tedious.

My invention is a marked improvement over the old methods, as it provides for the easy ready removal of each of the parts. At the same time they are secured and held in position more firmly than by the ordinary methods, avoiding the use of screws and the piercing of holes through the cutters, all of which will-be fully described, and then pointed out in the claims.

In the drawings, Figure l is a side sectional elevation of my improvement. on line a; or of Fig. 2. Fig. 2 is a top plan view. Fig. 3 is a sectional elevation on line 00' 00', Fig. 2. Fig. 4 isa section on line 3 y, Fig. 2. Fig. 5 is a rear elevation of the guard-finger detached from the finger-bar. Fig. 6 is a modification showing a side elevation, partly in section, of the guard-finger adapted to be attached to an ordinary finger-bar. Fig. 7 is a top plan view of the same. Fig. 8 is a rear sectional elevation on line 2 a, Fig. 6. Fig. '9 is a detail view of a modification.

A represents the supporting finger-bar of the ordinary harvester; B, the guard finger, and C a flange cast on and with the guardfinger B. The flange G is provided with a hook, c,which passes down behind the fingerbar A, and forms a groove between it and the curing the parts 13' O to the bar vertical flange G, for bracing it upon the finger-bar A.

D D represent through-bolts fir rigidly se- The contour of the flange-plate C as shown in Fig. 5 is the preferred form.

The projections d form shoulders which bear against the shank of the bolts D, the heads of which engage over the flanges G of two adj acent guards, holding the plate secure against lateral movement, and these shoulders, in conjunction with the bolts D and hook c, effectually prevent vertical movement of the guard-fingers. This form of constructing the guard-plate O has the advantage of allowing the guard-finger to be removed by the removal of one bolt only. A modification of this form of attachment might be made by having the plate 0 made large enough to be pierced with holes for the bolts D, as shown in Fig. 9; but such construction would require the removal of two bolts in order to take off the guardfinger, but if so constructed it would still be a feature of my invention.

E represents the cutter bar and e'the cutters, rivetedthereto in the usual manner.

F represents the open slot in the guard-finger of the ordinary construction, except the forward part is beveled or slotted out, as shown by dotted lines b b in Fig. 2.

G represents the ledger plates, secured to the guard-fingers B.

9 represents a slot or beveled orifice pierced through the flangeplates C, the top portion of which is made of the contour to fit and receive the ledger-plates G, which are inserted through the rear of flange O, and 'the forward portion of each ledger-plate G is made to fit into the recess indicated by dotted lines b 1). (Shown in Fig. 2.) Instead of these inclined slots, the finger might be gained and the ledger-plate G tenoned to fit the gain at the forward end; or any other form of recess may be employed to prevent the lateral movement of the forward end of ledger-plate G in the finger B. r

a represents a projection of the guard-finger B, resting upon the ledger-plate G, so as to prevent movement, and forming the top of the recess.

In order to allow the surfaces of the guardfingers upon which the ledger-plates G rest to as to conform to the shape of the ordinary be more easily fitted, I core out two centers so I as to form two ribs or ledges on the exterior or sides of the guard fingers B, as shown at 0, Fig. 4. By this mode of constructing the guard-fingers B the ledger-plates G are readily inserted and removed through the orifice g from the rear side of flange C, and yet the ledger-plates G are firmly held in their position against vertical, lateral, or forward movement, and they are securely held in position when the guard-finger B is rigidly secured to the finger-bar A, which rests against the rear end of the ledger-plates G.

I prefer to make the rear edge of the flange O with ribbed surfaces, as shown by letters '5 n i, as they are more easily fitted or t'ruedoff to bear equally against the finger-bar A.

8 represents a downward extension opening through flangeG, or is a prolongation of the coring out of the center, as shown at 0, Fig. 4:. It serves to allow the finger to be inserted a little distance to take hold of the ledgenplate G for inserting and removing the same.

Fig. 6 represents a modified construction of the detachable guardfinger B for securing it to the ordinary fingerbar, so as to utilize the detachable ledger-plates G,whicl1 are inserted in the guard-finger B,which is constructed in the same manner as shown in Figs. 1, 2, 3, at, and 5, except a portion of the flange C and the hook c are omitted and a horizontally-ex tended flange, H, is projected upon the rear end of guard finger B, for securing it to the finger-bar I. n

The guardfingers B are further modified so fingers of the finger-bar; but the mode of coring out and forming the grooves for the ledger plates G to rest in is substantially the same as those shown in the other figures of the drawings. These ledger-plates G are ini serted and removed and held in position in use of a detachable ledger-plate, G, which is.

held in position without being pierced with screw-holes.

WVhat I claim is 1. The detachable guard-finger B O, having the slot and adapted to receive and hold I the led ger-plates G, substantially as described.

2. The detachable guard-finger B 0, having the slot 9 in the rear and the slot or recess 1) in the front for receiving the ledgenplate G, substantially as described.

3. The detachable guard-finger B 0, having the slot 9, in combination with the ledgerplate G and finger-bar, substantially as described.

4. In combination with the detachable guard-finger B G, the flange 0 thereof provided with the hook o and bolt-shoulders d, adapted to be secured to the finger-bar A by bolts D, substantially as described.

5. The detachable guard-finger B O, the flange 0 thereof having hook c, adapt-ed to fit over and be secured to the bar by the heads of bolts D engaging over the flanges of two adjacent guards, substantially as described.

In testimony whereofI have hereunto set my hand.

ROBERT BROW'N.

W'itnesses:

JNO. E. J oNns, A. GLUoHowsKY. 

